Vacuum cleaner



FIG. 1 is a rear, top and left-side perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front, top and left-side perspective view thereof;

FIG. 3 is an exploded rear perspective view thereof;

FIG. 4 is an enlarged front, top and side perspective view thereof;

FIG. 5 is an enlarged rear, top and side perspective view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a side elevation view thereof;

FIG. 8 is a front elevation view thereof; and,

FIG. 9 is a rear elevation view thereof.

The broken lines show elements of the vacuum cleaner that form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 